Standing afar off - Afar off from the “temple.” The place where prayer was offered in the temple was the court of women. The Pharisee advanced to the side of the court nearest to the temple, or near as he could; the publican stood on the other side of the same court if he was a Jew, or in the court of the Gentiles if he was a pagan, as far as possible from the temple, being conscious of his unworthiness to approach the sacred place where God had his holy habitation.
So much as his eyes ... - Conscious of his guilt. He felt that he was a sinner, and shame and sorrow prevented his looking up. Men who are conscious of guilt always fix their eyes on the ground.
Smote upon his breast - An expression of grief and anguish in view of his sins. It is a sign of grief among almost all nations.
God be merciful ... - The prayer of the publican was totally different from that of the Pharisee. He made no boast of his own righteousness toward God or man. He felt that he was a sinner, and, feeling it, was willing to acknowledge it. This is the kind of prayer that will be acceptable to God. When we are willing to confess and forsake our sins, we shall find mercy, Proverbs 28:13. The publican was willing to do this in any place; in the presence of any persons; amid the multitudes of the temple, or alone. He felt most that “God” was a witness of his actions, and he was willing, therefore, to confess his sins before him. While we should not “seek” to do this “publicly,” yet we should be willing at all times to confess our manifold transgressions, to the end that we may obtain forgiveness of the same by God’s infinite goodness and mercy.” It is not dishonorable to make acknowledgment when we have done wrong. No man is so much dishonored as he who is a sinner and is not willing to confess it; as he who has done wrong and yet attempts to “conceal” the fault, thus adding hypocrisy to his other crimes.